The Walker's Razor Electronic ear muff provides an excellent balance of quality, value, and safety. Made of a durable sound dampening composite housing, the Razor provides a noise reduction rating of 23 NRR. The sound activated compression is 0.002 seconds to ensure your hearing is protected. The two hi-gain omni-directional speakers pick up ambient noise and broadcast it through HD speakers for ultra clear sound. The padded headband allows you to wear the Razor during long range sessions in comfort. The low-profile ear cups are ideal when shooting longs guns because they are less likely to interfere with the stock. An over-the-ear muff is preferable for indoor ranges as well. Protecting your hearing is very important so Walker's makes protecting your hearing easy.Features :Low Profile Electronic Hearing ProtectionSound Compression 0.002 seconds23 NRRCoral